Where does “blau” come from?

blau (German) comes from Middle High German blā, from Old High German blāo, from Proto-West Germanic blāu, from Proto-Germanic blēwaz, from Proto-Indo-European bʰlēw- — yellow, blond, grey.

blau (German): blue; drunk

Definitions

  1. blue; drunk

Ancestry of “blau”, step by step

StepLanguageWordMeaning
1Middle High Germanblāblue
2Old High Germanblāoblue, dark, grey; blue; yellow
3Proto-West Germanicblāublue
4Proto-Germanicblēwazblue; a dark bluish or grey colour, black
5Proto-Indo-Europeanbʰlēw-yellow, blond, grey

Words derived from “blau”

Every word from Proto-Indo-European bʰlēw- →Every word from Proto-Germanic blēwaz →Every word from Proto-West Germanic blāu →
blau — Etymology, Origin & Word History | Etymology Explorer